Prosecution Insights
Last updated: July 17, 2026
Application No. 18/498,600

Gas Shield Protection Device for Thermal Spraying

Final Rejection §112
Filed
Oct 31, 2023
Examiner
TUROCY, DAVID P
Art Unit
1718
Tech Center
1700 — Chemical & Materials Engineering
Assignee
Metal Industries Research & Development Centre
OA Round
2 (Final)
47%
Grant Probability
Moderate
3-4
OA Rounds
10m
Est. Remaining
82%
With Interview

Examiner Intelligence

Grants 47% of resolved cases
47%
Career Allowance Rate
420 granted / 899 resolved
-18.3% vs TC avg
Strong +36% interview lift
Without
With
+35.5%
Interview Lift
resolved cases with interview
Typical timeline
3y 6m
Avg Prosecution
68 currently pending
Career history
976
Total Applications
across all art units

Statute-Specific Performance

§103
83.3%
+43.3% vs TC avg
§102
1.5%
-38.5% vs TC avg
§112
4.8%
-35.2% vs TC avg
Black line = Tech Center average estimate • Based on career data from 899 resolved cases

Office Action

§112
Notice of Pre-AIA or AIA Status The present application, filed on or after March 16, 2013, is being examined under the first inventor to file provisions of the AIA . Response to Amendment Applicant’s amendments, filed 6/18/2026, have been fully considered and reviewed by the examiner. The examiner notes the amendment to claims 1. Claims 1-14 remain pending. In view of the amendment to claim 1, the examiner has withdrawn the prior claim objection. Claim Rejections - 35 USC § 112 The following is a quotation of the first paragraph of 35 U.S.C. 112(a): (a) IN GENERAL.—The specification shall contain a written description of the invention, and of the manner and process of making and using it, in such full, clear, concise, and exact terms as to enable any person skilled in the art to which it pertains, or with which it is most nearly connected, to make and use the same, and shall set forth the best mode contemplated by the inventor or joint inventor of carrying out the invention. The following is a quotation of the first paragraph of pre-AIA 35 U.S.C. 112: The specification shall contain a written description of the invention, and of the manner and process of making and using it, in such full, clear, concise, and exact terms as to enable any person skilled in the art to which it pertains, or with which it is most nearly connected, to make and use the same, and shall set forth the best mode contemplated by the inventor of carrying out his invention. Claims 1-14 are rejected under 35 U.S.C. 112(a) or 35 U.S.C. 112 (pre-AIA ), first paragraph, as failing to comply with the written description requirement. The claim(s) contains subject matter which was not described in the specification in such a way as to reasonably convey to one skilled in the relevant art that the inventor or a joint inventor, or for applications subject to pre-AIA 35 U.S.C. 112, the inventor(s), at the time the application was filed, had possession of the claimed invention. Claim 1 requires “at least one gas ejection port is configured to face the plurality of workpieces in a direction substantially perpendicular to the spray material path”; however, a full and fair reading of the specification fails to provide explicit or implicit support for the requirement of “direction substantially perpendicular.” While the drawings are used by the applicant as support, there is no evidence in the drawings or the description of such that the ejection ports and spray path are substantially perpendicular or perpendicular. Whenever the issue arises, the fundamental factual inquiry is whether the specification conveys with reasonable clarity to those skilled in the art that, as of the filing date sought, inventor was in possession of the invention as now claimed. See, e.g., Vas-Cath, Inc. v. Mahurkar, 935 F.2d 1555, 1563-64, 19 USPQ2d 1111, 1117 (Fed. Cir. 1991). If a claim is amended to include subject matter, limitations, or terminology not present in the application as filed, involving a departure from, addition to, or deletion from the disclosure of the application as filed, the examiner should conclude that the claimed subject matter is not described in that application. This conclusion will result in the rejection of the claims affected under 35 U.S.C. 112(a) or pre-AIA 35 U.S.C.112, first paragraph - description requirement, or denial of the benefit of the filing date of a previously filed application, as appropriate. See MPEP 2163.02. Dependent claims do not cure the deficiencies of the claims from which they depend and are similarly rejected. The following is a quotation of 35 U.S.C. 112(b): (b) CONCLUSION.—The specification shall conclude with one or more claims particularly pointing out and distinctly claiming the subject matter which the inventor or a joint inventor regards as the invention. The following is a quotation of 35 U.S.C. 112 (pre-AIA ), second paragraph: The specification shall conclude with one or more claims particularly pointing out and distinctly claiming the subject matter which the applicant regards as his invention. Claims 1-14 rejected under 35 U.S.C. 112(b) or 35 U.S.C. 112 (pre-AIA ), second paragraph, as being indefinite for failing to particularly point out and distinctly claim the subject matter which the inventor or a joint inventor (or for applications subject to pre-AIA 35 U.S.C. 112, the applicant), regards as the invention. The term “substantially perpendicular” in claim 1 is a relative term which renders the claim indefinite. The term “substantially perpendicular” is not defined by the claim, the specification does not provide a standard for ascertaining the requisite degree, and one of ordinary skill in the art would not be reasonably apprised of the scope of the invention. Here, there is no guidance as to what is reasonably within the scope of the claims as drafted, i.e. metes and bounds of substantially perpendicular and how much from perpendicular would be within the scope of the term substantially perpendicular, i.e. 90o, 89.9o, 80o, 45o, etc. One ordinary skill in the art would not be apprised, based on the facts and original disclosure, what angle between the ejection port and spray path would meet the claims scope “substantially perpendicular” and which angles would be outside the scope of the instantly drafted claim. Dependent claims do not cure the deficiencies of the claims from which they depend and are similarly rejected. Conclusion Applicant's amendment necessitated the new ground(s) of rejection presented in this Office action. Accordingly, THIS ACTION IS MADE FINAL. See MPEP § 706.07(a). Applicant is reminded of the extension of time policy as set forth in 37 CFR 1.136(a). A shortened statutory period for reply to this final action is set to expire THREE MONTHS from the mailing date of this action. In the event a first reply is filed within TWO MONTHS of the mailing date of this final action and the advisory action is not mailed until after the end of the THREE-MONTH shortened statutory period, then the shortened statutory period will expire on the date the advisory action is mailed, and any nonprovisional extension fee (37 CFR 1.17(a)) pursuant to 37 CFR 1.136(a) will be calculated from the mailing date of the advisory action. In no event, however, will the statutory period for reply expire later than SIX MONTHS from the mailing date of this final action. Any inquiry concerning this communication or earlier communications from the examiner should be directed to DAVID P TUROCY whose telephone number is (571)272-2940. The examiner can normally be reached Mon, Tues, Thurs, and Friday, 7:00 a.m. to 5:30 p.m. Examiner interviews are available via telephone, in-person, and video conferencing using a USPTO supplied web-based collaboration tool. To schedule an interview, applicant is encouraged to use the USPTO Automated Interview Request (AIR) at http://www.uspto.gov/interviewpractice. If attempts to reach the examiner by telephone are unsuccessful, the examiner’s supervisor, Gordon Baldwin can be reached at 571-272-5166. The fax phone number for the organization where this application or proceeding is assigned is 571-273-8300. Information regarding the status of published or unpublished applications may be obtained from Patent Center. Unpublished application information in Patent Center is available to registered users. To file and manage patent submissions in Patent Center, visit: https://patentcenter.uspto.gov. Visit https://www.uspto.gov/patents/apply/patent-center for more information about Patent Center and https://www.uspto.gov/patents/docx for information about filing in DOCX format. For additional questions, contact the Electronic Business Center (EBC) at 866-217-9197 (toll-free). If you would like assistance from a USPTO Customer Service Representative, call 800-786-9199 (IN USA OR CANADA) or 571-272-1000. /DAVID P TUROCY/Primary Examiner, Art Unit 1718
Read full office action

Prosecution Timeline

Oct 31, 2023
Application Filed
Mar 19, 2026
Non-Final Rejection mailed — §112
Jun 18, 2026
Response Filed
Jul 02, 2026
Final Rejection mailed — §112 (current)

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Study what changed to get past this examiner. Based on 5 most recent grants.

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Prosecution Projections

3-4
Expected OA Rounds
47%
Grant Probability
82%
With Interview (+35.5%)
3y 6m (~10m remaining)
Median Time to Grant
Moderate
PTA Risk
Based on 899 resolved cases by this examiner. Grant probability derived from career allowance rate.

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